/*
 * Copyright 2012-2025 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.assertj.core.error;

import java.util.Optional;

/**
 * Build an error message when a value should be instance of a specific class.
 *
 * @author Alban Dericbourg
 */
public class OptionalShouldContainInstanceOf extends BasicErrorMessageFactory {

  private OptionalShouldContainInstanceOf(String message) {
    super(message);
  }

  /**
   * Indicates that a value should be present in an empty {@link java.util.Optional}.
   *
   * @param value Optional to be checked.
   * @param clazz the class to check the optional value against
   * @return an error message factory.
   * @throws java.lang.NullPointerException if optional is null.
   */
  public static OptionalShouldContainInstanceOf shouldContainInstanceOf(Object value, Class<?> clazz) {
    Optional<?> optional = (Optional<?>) value;
    if (optional.isPresent()) {
      return new OptionalShouldContainInstanceOf("%nExpecting actual:%n %s%nto contain a value that is an instance of:%n %s%nbut did contain an instance of:%n %s".formatted(optional.getClass()
                                                                                                                                                                                     .getSimpleName(),
                                                                                                                                                                             clazz.getName(),
                                                                                                                                                                             optional.get()
                                                                                                                                                                                     .getClass()
                                                                                                                                                                                     .getName()));
    }
    return new OptionalShouldContainInstanceOf("%nExpecting actual:%n %s%nto contain a value that is an instance of:%n %s%nbut was empty".formatted(optional.getClass()
                                                                                                                                                            .getSimpleName(),
                                                                                                                                                    clazz.getName()));
  }
}
